Model DHS Fre-Heater® Heat Recovery System

Harvest wasted heat energy. Paul Mueller Company Model DHS Fre-Heaters® channel recovered energy into a single or multiple Fre-Heater units, producing plentiful hot water to satisfy your needs.

Walk-in coolers, freezers, commercial air-conditioning systems, ice machines, and other refrigeration systems all waste enough heat energy to produce hot water on a large scale. A Mueller Fre-Heater pays for itself while reducing your energy costs proportionately to your hot water usage.

Thoroughly tested and listed by CSA US and Canada, our Fre-Heaters meet all codes required for double-wall heat exchanger construction. With our dual jacket, there are no concerns about refrigerant leakage and our industrial-grade, fully-insulated, glass-lined storage tank assures potable water and minimal heat loss. Canadian Registration Numbers (CRNs) are also available.

The Model DHS Fre-Heater has an 119-gallon capacity to meet your industrial heat recovery demands.

Features

  • Stainless steel outer jacket. Rust-resistant exterior requires no maintenance.
  • Mueller Temp-Plate heat transfer surface cools the superheated refrigerant from the condensing units and harvests the system’s wasted heat energy.
  • Industrial-grade, fully insulated, glass-lined storage tank assures minimal heat loss and long-term reliability.
  • Factory-installed anode(s) provides superior galvanic corrosion protection for the water storage tank. 
  • Complies with CSA regulations for the United States and Canada, and have Canadian Registration Numbers (CRNs).
  • Five-year limited warranty protects your purchase.
  • Temperature of hot water depends on size of condensing units and cooling time.  
  • Channels recovered energy into single or multiple Fre-Heater units.
  • Designed for 150 psi maximum water working pressure and 500 psi maximum refrigerant  working pressure.
  • Has an 119-gallon capacity.
  • Model DHSE Fre-Heaters offer all of the features of standard Model DHS Fre-Heaters with the addition of a 4,500 - or 6,000-watt, 240- or 460-volt electric element. 

Specifications and Sizing

Model No. Part No. Water Connection (in) No. of Refrig. Circuits Refrig. Connection Size (in) Per Circuit Refrig. Application Capacity* Height (in) Diameter (in) Approx. Shipping Weight (lb)
DHS-120 8825141 1.25 FPT 1 1 5/8 ODM 14 to 70 ton 62 29.5 440
DHSE-120A4 8825142 1.25 FPT 1 1 5/8 ODM   14 to 70 ton 62 29.5 440
DHSE-120A6 8825213 1.25 FPT 1 1 5/8 ODM 14 to 70 ton 62 29.5 440
DHSE-120B6 8825214 1.25 FPT 1 1 5/8 ODM 14 to 70 ton 62 29.5 440

*Refrigeration tonnage capacities are 30°F evaporator ton loads, not total heat of rejection tons. Pressure drop through a Fre-Heater refrigeration circuit will be approximately 15 psi at the maximum tonnage application. Pressure drop at the mid-range of tonnage application will be approximately 5 to 7 psi. The best overall refrigeration/heat recovery system efficiency is usually obtained at or below the mid-range tonnage application.

Financing

Finding the right equipment that fits within your budget can be daunting. At Paul Mueller Company, we understand your needs. That’s why we offer Leasing options that give you more flexibility.


Tell us more about your needs.